[gnome-software] (3 commits) Non-fast-forward update to branch wip/jrocha/fix-updates-list

[Joaquim Manuel Pereira Rocha <jrocha src gnome org>]

The branch 'wip/jrocha/fix-updates-list' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c7efefc... Add a method to quickly check if an app is updatable
  463d5fe... Filter apps that are not updatable from the updates list

Commits added to the branch:

  3f9bad6... Add a method to quickly check if an app is updatable
  e76d1c8... Filter apps that are not updatable from the updates list
  549c7c9... trivial: Refactor gs_app_is_installed to access the state d